Portable funnel



FIG. 1 is a front view of portable funnel showing new design;

FIG. 2 is a perspective view thereof; and,

FIG. 3 is a perspective view thereof, showing the portable funnel in a position of use with an exemplary bottle.

The broken lines represent environmental subject matter of an exemplary bottle as well as fold lines. None of the broken lines form part of the claimed design. 

CLAIM The ornamental design for a portable funnel, as shown and described. 